An ophthalmoscope is a handheld medical instrument used by eye care professionals to examine the interior structures of the eye, particularly the retina, optic nerve, blood vessels, and macula. It helps diagnose conditions such as glaucoma, macular degeneration, retinal detachment, and more.The ophthalmoscope is primarily used to detect eye health issues like retinal disease, optic nerve damage, diabetic retinopathy, and other eye disorders. It provides a non-invasive way for doctors to get a detailed look inside the eye, which is crucial for diagnosing these conditions early.